Automatic compression-lubricator.



' PATENTED APR. 4, 1905.

R O T A R B U ML 1 N 5 II mm m P M 0 MG G .1 T A M O T U A APPLICATION FILED MAY 27. 1904.

' 'VEJVTOR W! T/VESSES:

UNITED STATES Patented April 4;, 1905.

PATENT OEEicE.

DICK B. WILLIAMS, OF SCOTTDALE, PENNSYLVANIA, ASSIGNOR TO LAOKAWANNA LUBRIGATOR AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

AUTOMATIC COMPRESSlQN-LUBRIOATOR.

SPECIFICATION forming part of Letters Patent No. 786,701, dated April 4;, 1905.

Application filed May 27, 1904, Serial No. 210.086.

To rill/Z 1117mm it may concern:

Be it known that I, DICK B. /VILLIAMs, a citizen of the United States, residing at Scottdale, in the county of lVestmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Compression-Lubricators, (Case A,) of which the following is a specification.

This invention relates to that type of lubricators commonly termed grease-cups, adapted for lubricating purposes generally.

A special object 01 the invention is to provide a grease-cup or lubricator possessing special utility in connection with motor-vehicles.

To this end the invention contemplates a novel construction wherein the separate parts or members of the cup are readily separable for refilling purposes, while also being associated with means for locking together the separate parts of the cup when the lubricator is in action and for locking the piston in an inactive position when the vehicle is at rest or it is not desired for the lubricator to feed.

With these and other objects in view, which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts, as herein after more fully described, illustrated, and claimed.

The essential feature of the invention involved in the novel means employed for locking together the separate parts of the cup or receptacle and for relieving the piston from the tension of the pressure-spring is neces sarily susceptible to structural change without departing from the scope of the invention; but a preferred embodiment thereof is shown in the accompanying drawings, in which Figure 1 is a perspective view of a compression-lubricator constructed in accordance with the present invention and showing the locking device in its lowered position for locking together the separate members of the cup. Fig. 2 is a similar view showing the locking device swung to its upright position, in which position. the separate members of the cup are unlocked and the piston is released from the tension of its pressure-spring. Fig. 8 is a vertical sectional view of the cup with the parts arranged as shown in Fig. 1. Fig. 4. is a vertical sectional view at right angles to that indicated in Fig. 3 and show ing the parts in the position illustrated in Fig. 2.

Like reference-numerals designate corresponding parts in all figures of the drawings.

The cup body or receptacle indicated in entirety by the numeral 1 essentially comprises separate cup members 2 and 3, the tubular portions of which are adjustably connected together through the medium of the threaded connection 4, thus providing means whereby the capacity of the lubricant-chamber may be varied and the members readily separated for refilling purposes. The lower cup member 2 is provided with the usual outlet-nipple 5, adapted to be fitted in the ordinary way to the part to be lubricated and at its upper end is formed with an outturned flange 6, provided therein with a catch-notch 7, corresponding to a similar catch-notch 8, formed in the peripheral edge of the cover 9, carried by the upper cup member 3. These notches when brought into the same vertical plane are adapted to be engaged by the inner edge of a lock-linger 1.0, carried by a leverlocking device 11, which provides a lock for both the piston and the cup.

The lever-locking device 11 is arranged to operate above the cover 9 and cooperates with said cover and also with the sliding stem 12 of the piston-head 13, working with in the cup body or receptacle. The stem 12 works through a guideppcning 14, provided in the cover 9, and is provided at its upper extremity with a shouldered head 15, between which and the turning portion of the lever-locking device 11 is arranged a lockholding spring 16, which serves to maintain the locking device firmly in interlocked engagement with the separate members of the cup, as may be plainly seen in Figs. 1 and 2 I of the drawings.

The piston or 'r'ollower 13 is held under pressure against the lubricant within the cup or receptacle by the main inner pressurespring 17, interposed between the upper side of the piston and the upper head of the cup or receptacle, and when said spring is free to act the pressure thereon is suflicient to cause the lubricant to be forced out through the nipple 5 to the point of distribution upon the part to be lubricated. The sliding stem 12, which carries the piston or follower 13, is provided in opposite sides thereof with longitiulinally-disposed slide-grooves 18, adapted to be slidably and rotatably engaged by the combined pivot and holding studs 19, projecting inwardly from opposite side portions of the turning part 20 of the lever-locking device ll. This turning part 20 of the leverlocking device is in the form of a Hat fulcrum bar or plate disposed at opposite sides of the longitudinal plane ol the stem '12, and said studs 19 are disposed at or contiguous to what may be termed the inner edge of said fulcrum bar or plate, while an opposite edge of said bar or plate is adapted to snap into engagement with a transversely-disposcc rctaininggroove 21, Formed as the upper face of the cover 9, carried), nenppcr cup memlticr 3.

As stated, the lever-lrmlring device 11 consists ot a swinging or turning lever, essen tially consisting oi a yoke-shaped member provided at one end with the fulcrum bar or plate 20 and extended at one side of said bar or plate into an opening lever-arm portion 22, at the extremity oi which is provided the oilsct loclelinger l0 and which extremity also forms a linger-piece to permit of the con venient rajiising and lowering ol the locking device.

l'i lien the cup or receptacle is filled with lubricant, the locking device 11 is lowered, so that the lock-hm a, 10 thereof couples togcther the parts 2 and 3 ol' the cup. In this position of parts the stronger inner pressurespring 1'? is free to exert its tension. or pressure with a cons quent feeding of lubricant out of the cup. li hen it is desired to stop the i ecding' as, fo instance, when a vehicle is at rest or when is desired to refill. the lubricator-thc locking device is swung upward. This upward movement of the loclring device first uncouples the two parts of the cup and at the same time takes the tension ol the inner pressurc-spring oil the piston and locks the piston in an inactive position. it will be seen that during the turning 'movei'nent oi the locking device the combined pivot and holding studs 19) not only turn in the slide-grooves 18, but also move to tne upper ends of such grooves and hit the piston. At the same time the outer edge of vector the fulcrum bar or plate 20 snaps into the retaining-groove 21 and is held firmly therein by the loch-holding spring 16.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described lubricator will he readily apparent without further description.

Having thus described the invention, what is claimed as new is 1. In a lubricator o'f the class described, a receptacle comprising separate detachablyconnected cup members, a spring-actuated piston, and a pivotal lever-lock comprising means, when in one position, for locking the cup members together, and also comprising means, when in another position, for locking the piston in an inactive position.

2. in a lubricator of the class described, a receptacle comprising separate detachablyconnected cup members, a spring-actuated. piston, and a lever-lock comprising means for locking the cup members together and also for liiting the piston by lever action to a non-feeding position.

3. In lubricator of the class described, a receptacle comprisingseparate dctachablyconnected cup members, a spring-actuated piston, and a lever-lock having a combined lifting and locking connection with the piston-stem and also having a locking member for engagement with the separate cup memhers.

l. In a lubricator of the class described, a receptacle comprising separate detachablyconnected. cup members, a spring-actuated piston, and a swinging lever-locking device having a fulcrum mounting upon the cup, and a locking member for engagement with the separate cup members, said lever-locking device also having a combined lifting and locking connection with the stem of the piston.

In a lubricator of the class described, a receptacle comprising separate detachably and adjustably connected cup members each having a catch-notch, a spring-actuated piston having a stem sliding through the upper cup member, and a spring-held lever-lock pivotally connected with the piston-stem and having a fulcrum engagement with the upper cup member, said lever-lock being provided with a lock-finger -for engagement with the catch-notches of both of the cup members.

6. in a lubricator of the class described, a receptacle comprising separate. dctachably and adjustably connected cup members, each having a catch-notch and the upper cup member being provided with a transverselydisposed retaining-groove, a spring-actuated piston having a stem sliding through the cover of the cup and provided at its upper end with a shouldered head and at an intermediate point with opposite longitudinallydisposed sliding grooves, 21 yoke-shaped l00k-- l e lock-holding spring interposed between ing-lever provided with a lever-arm having :1 the head of the piston-stem and the fulcrum look-finger for engagement with the catchbe! or plate of said lever-looking device notches and With a transverse fulcrum bar In testimony whereof I nfiuc my signature 5 or plate having at or contiguous to one edge in presence of two Witnesses.

. q l 1 1 lIlXhHdlY-CllSPOGd co nbined pivot and nolo- DICK BI WILLIAMS lng studs engaging SZLlCl slide-grooves, tne opposite edge portion of said fulcrum bar or Witnesses: plate being adapted to move into and out of J. M. STAUFFER,

TO engagement with said retaining-groove, and ARTHUR LOUCKS. 

